ZLF645E0H2864G Zilog, ZLF645E0H2864G Datasheet - Page 39

• Manufacturer Part Number: ZLF645E0H2864G
• Description: IC MCU 64K FLASH 1K RAM 28-SSOP
• Manufacturer: Zilog
• Series: Crimzon™ ZLFr

Specifications of ZLF645E0H2864G

• Core Processor: Z8 LXMC
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, WDT
• Number Of I /o: 24
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.9 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Oscillator Type: -
• Other names: 269-4719

Table 14. Port 0/1 Mode Register (P01M)
PS026407-0408
Bit
Field
Reset
R/W
Address
Bit Position
[7]
[6]
[5:4]*
[3]
[0]
*
For package types other than the 48-pin package, writes to bit 3 have no effect.
*
Port 0/1 Mode Register
Note:
Reserved
The Port 0/1 Mode register (see
Port 1. The Port 0 direction is nibble-programmable. Bit 6 controls the upper nibble of
Port 0, bits [7:4]. Bit 0 controls the lower nibble of Port 0, bits [3:0]. The Port 1 direction
is byte programmable.
Only P00, P01, and P07 are available for ZLF645 Flash MCU 20-pin configuration.
Value
—
X
7
—
0
0
1
0
1
0
1
Description
Reserved—Must be written to 1. Reads 1b.
P07:P04 Mode
Output
Input
Reserved—Must be written to 1. Reads 1’s.
Port 1 Mode
Output
Input
P00:P03 Mode
Output
Input
P07:P04 Mode
W
6
1
Bank Independent: F8h; Linear: 0F8h
Reserved
—
X
5
Table
—
X
4
14) determines the I/O direction of Port 0 and
Port 1 Mode
W
3
1
ZLF645 Series Flash MCUs
Reserved
—
X
2
Product Specification
—
X
1
Port 0/1 Mode Register
P03:P00 Mode
W
0
1
31